Roller-bearing.



' J P. FOSTER.

I ROLLER BEARING.-

YAPPLIQATIONIIIVIED HAYS! 1910.

2 SHEETSTSEEBT 1.

l .1,0] ;1 337 V Y I -PatentedDc.12,1911.

J. F FOSTER. ROLLER BEARING. AAAAAAA TIAON FILED HAYS, 1910.

1,011,337 Patented Dec.12,1911.'

. I SSSSSSSSSSSSS 2.

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1 To all whom it mayconcern;

UNITED STATES PATENT OFFICE.

JOHN r. ros'rnn, or KANSAS CITY, KANSAS.

} ROLLER-BEARING.

Be 'it known that I, JOIIN F. FOSTER, a

citizen of the United States, residing at Kansas City, inthe county ofWyandotte and State of Kansas, have invented certain new and usefulImprovements in Roller- Bearings, of which the following isaspecification.

To these ends the mventionronsists in certain novel and peculiarfeatures of con struction and organization as hereinafter described andclaimed; and'in order that it .mfy be fully understood reference is tobe had to the accompanying drawings in WlllCl'1 I Figure 1, is a doublebearing partly in side elevation and partly in section, the section ofone'part of the bearing showing the spacers of the bearing in elevationin the foreground and the section of the other part 'of' thebearingshowing the rollers in the foreground. Fig. 2, 1s a sect on onthe line II--II of.Fig. 1. Fig. 3, is a view similar to the right-handportion of Big. 1 bu showing a slightly modified type of construction.Fig. 4, is a detail perspective view of one of the spacers pf thebearing.

In the sand draw ngs, 1 indicates a shaft and mounted thereon at asuitable distance apart is a pair of cones 2, arranged with their endsof smallest diameterfacing each other, it being understood that thepreferred method of mounting the cones is to key them on the shaft in'acommon andwell known manner, not shown, so that they can beremovedtherefrom should necessity arise. At their outer or remote sidesthe cones are diametrically enlarged to provide rounded inwardly facingshoulders 3, and at their inner edgesthe cones are rounded as at 4'. Inthe preferred construction the. cones are Specification of LettersPatent.

Application file'd May 5, 1910. Serial No. 559,501.

Patented Dec 12', 1911.

provided with central circumferential ribs 5 and by preference will begrooved at o posite sides of the ribs as at 6, the walls 0 the groovesbeing preferably rounded.

Concentrically surrounding the cones are collars 7, the passages oropenings 8 of the collars being of tapering formand bearing an inwardlyconverging relation to the cones, and said collars are preferablyprovided at their inner sides with clrcular 5 channels 9, the side.walls of the-channels being preferably rounded asat 11.

12 are inwardly tapering rollers arranged between and engaging theconesof the collars and preferably rounded at their opposite ends as at13. and said rollers are diametrically reduced to form annular grooves14 to receive the rib 5, the walls of the] grooves where they merge intothe periphery of the rollers being rounded at 15. The

rollers are reduced diametrically as described in order to be capable offlexing or springing slightly midway their length and also to enable theribs of the cones to more successfully resist undesirable movement ofthe rollers in the event that one or more of them becomes so worn as totend to creep or work downwardly and engage both the cones and collars,and in this connection, it should be stated-that the vari-' ous partsdescribed as rounded are so made to avoid any chance of the cones,collars or rollers chipping under the imposition ofheavy pressure orpounding on a sharp'edge or corner. e '90 The rollers are preferablyprovided at' their ends j\\lt-l1 rounded axial projections 16, capableof entering shallow rounded cavities 18 in the rings 17 and 19 disposedat the outer and inner e'nds respectively of the 'rollcrs, the rings 17loosely surrounding the large ends of the cones and the rings 19 looselysurrounding the shaft. inward of the small ends of the cones, andarranged between and riveted to said rings alternately with respect to:the rollers are spacers 20 which in conjunction with the rings 17 and19' constitute skeleton cages which revolve with the rollers. Eachspacer is provided at opposite sides with segmental recesses 21 in whichthe adjustable rollers-project so that the spacers shall hold therollers equal distances apart and shall be prevented by the latter frommoving inward and outward and therefore guard against the rings of the11 endwise 8 0 cages coming into frictional engagement with the cones orshaft. The spacers like the rollers are preferably diametrically reducedcentrally at 22, so that they shall be :5 capable of flexing midwaytheir length and thus avoid danger of breaking should they be compelledto sustain more pressure at one end than at the other.

In Fig. 3, the construction and arrangeo ment of the parts are the sameas that described except that the collar 7 is provided centrally with aninwardly projecting rib 23 instead of the cone being provided with anoutwardly projecting rib, it being also noticed that in Fig. 3, thecollar 7 is proend of said rollers, being further noted that the innerring 19 or" the cage in Fig. 3, is arranged within the inner edge of thecollar 7.

In practice the hub of a wheel, not shown, may be secured to the shaft 1or to the collar 7; in the former case the shaft and cones will revolveand cause the rollers to travel around within the collars which will bestationary. in the other case the shaft and cones wiltbe stationary andthe collars will revolve with the wheel and cause the rollers to travelaround upon the cones, the cages in both cases traveling with the,rollers. Under the tendency 'of the wheel to move laterally in the firstcase, one df the rounded shoulders of one of the cones will impose anendwise inward thrust against the adjacent ends of the rollers thecollar 7 counteracting such movement owing to its wedge relation to saidcone and the interposed rollers. In

40 the construction shown in Fig. 3, the tendency of the wheel tomovelaterally will cause one of the collars 7 to move outward against theinner ends of the inclosed rollers, this movement being counteracted by45. the cone engaged by said rollers. It will thus be seen that in bothcases the cones and collars are practically fixed as regards relativemovement longitudinally of the shaft. To dismantle a. bearing of thetype shown 50. in Fig. 1, relative separating opposite move- .m'ent ofthe cones and collars will be effected, it being understood that whenthe cones are withdrawn from the collars in the construction shown byFig. 1, the cages and norms will be likewise withdrawn owing to theengagement of the ribs oi the cones with the rollers. In theconstruction shown by Fig. 3,.the cones may be withdrawn but will leavethe cages and rollers within the collars .60 because the ribs ofthelatter engage the roo es of the rollers. It will thus be seen thatthe rollers when once arranged in proper relation to the cages need notbe disturbed and that the parts of the bearing can therefore be morequickly secured in and-re moved from operative position than would bethe case if it were necessary to remove the rollers independently.

It will be noticed that when the parts are completely assembled inoperative relation that provision is ma le for a slight independentendwise movcn'ieut ol the rollers within the cages, this being so inorder that should one roller become worn more than another it may creepor work downward slightly between its cone and surrounding collar andthus maintain its wedge like relation to the same and insure acontinuous bearing at equidistant points on the cone and collars and bythus affording a continuous bearing maintain an equitable distributionof strain and avoid subjecting any one or more ofthe rollers to agreater strain than the remaining rollers.

From the above description it will be ap parent that l have produced aroller bearing possessing the features of advantages enumerated asdesirable and I wish it to be understood that I do not desire to berestricted to the exact details of construction shown and described asobvious modifications will suggest themselves to one skilled in the art.

Having thus described the invention what I claim as new and desire tosecure by Letters Patent, is:

1. In a roller bearing, a cone, a collar surrounding the same andtapered internally in the same direction. as the cone and internallybearing a converging relation to the latter, a plurality o'l equi-spacedinwardly tapering rollers interposed between the cone and collar andholding the same spaced apart and reduced to form circular groovesbetween their ends, means projecting into the grooves of said rollers tolimit excessive endwise n'lovement thereof, and a cage rotatable withthe rollers and consisting of a pair of rings and a plurality ofequi-spaced spacers interposed between the cone and collar and adjacentrollers and secured at their ends to said rings; said spacers beingdiametrically reduced between their ends and in the vertical of saidrollers.

2. In a roller bearing. a cone, a collar surrounding the same andtapered internally in the same direction as the cone and internallybearing a converging relation to the latter, a plurality of equi-spacedinwardly tapering rollers interposed between the cone and the collar andholding the same spaced apart and reduced to form circular groovesbetween their ends, means projecting into the grooves of said rollers tolimit excessive endwise movement thereof, and a cage rotatable with therollers and consisting of a pair of rings and a plurality of equi-spacedspacers interposed between the cone and collar and adjacent rollers andsecured at plane of the reduced portions their ends to said rings; saidspacers having segmental cavities into which the adjacent rollersproject, and being diametrically reduced between their ends in thevertical plane of the reduced portions of said rollers.

3. In a roller bearing, a cone, a collar surrounding the same andtapered internally in the same direction as the cone and internallybearing a converging relation to the latter, a plurality of equi-spacedinwardly tapering rollers interposed between the cone.

and the collar and holding the same spaced apart and reduced to formcircular grooves between their ends, and provided at their ends Withrounded axial projections, means projecting into the grooves of saidrollers to limit excessive endwise movement thereof, and a cagerotatable with the rollers and consisting of a pair of rings. and aplurality of equi-spaced spacers interposed between 2Q the cone andcollar and adjacent rollers and secured at their ends to saidrings,'sa-id spacers having segmental cavities into which t e adjacentrollers project, and said rings having segmental cavities in their inner25 faces loosely receiving the rounded axial projections at the ends ofthe rolle' In testimony whereof I aflix my signature,

in the presence of two witnesses.

